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Fix regexp handling in redirect middleware

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This commit is contained in:
Tom Moulard 2022-04-15 17:24:08 +02:00 committed by GitHub
parent ad3625bef3
commit 232e2c1e7d
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3 changed files with 8 additions and 16 deletions
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2
pkg/middlewares/redirect/redirect.go
View File

@ -15,6 +15,8 @@ const (
schemeHTTPS = "https"
)
var uriRegexp = regexp.MustCompile(`^(https?):\/\/(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`)
type redirect struct {
next http.Handler
regex *regexp.Regexp

10
pkg/middlewares/redirect/redirect_regex.go
View File

@ -3,7 +3,6 @@ package redirect
import (
"context"
"net/http"
"regexp"
"strings"
"github.com/traefik/traefik/v2/pkg/config/dynamic"
@ -11,9 +10,7 @@ import (
"github.com/traefik/traefik/v2/pkg/middlewares"
)
const (
typeRegexName = "RedirectRegex"
)
const typeRegexName = "RedirectRegex"
// NewRedirectRegex creates a redirect middleware.
func NewRedirectRegex(ctx context.Context, next http.Handler, conf dynamic.RedirectRegex, name string) (http.Handler, error) {
@ -30,10 +27,7 @@ func rawURL(req *http.Request) string {
port := ""
uri := req.RequestURI
schemeRegex := `^(https?):\/\/(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
re, _ := regexp.Compile(schemeRegex)
if re.Match([]byte(req.RequestURI)) {
match := re.FindStringSubmatch(req.RequestURI)
if match := uriRegexp.FindStringSubmatch(req.RequestURI); len(match) > 0 {
scheme = match[1]
if len(match[2]) > 0 {

12
pkg/middlewares/redirect/redirect_scheme.go
View File

@ -5,7 +5,6 @@ import (
"errors"
"net"
"net/http"
"regexp"
"strings"
"github.com/traefik/traefik/v2/pkg/config/dynamic"
@ -14,8 +13,8 @@ import (
)
const (
typeSchemeName = "RedirectScheme"
schemeRedirectRegex = `^(https?:\/\/)?(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
typeSchemeName = "RedirectScheme"
uriPattern = `^(https?:\/\/)?(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
)
// NewRedirectScheme creates a new RedirectScheme middleware.
@ -33,7 +32,7 @@ func NewRedirectScheme(ctx context.Context, next http.Handler, conf dynamic.Redi
port = ":" + conf.Port
}
return newRedirect(next, schemeRedirectRegex, conf.Scheme+"://${2}"+port+"${4}", conf.Permanent, rawURLScheme, name)
return newRedirect(next, uriPattern, conf.Scheme+"://${2}"+port+"${4}", conf.Permanent, rawURLScheme, name)
}
func rawURLScheme(req *http.Request) string {
@ -46,10 +45,7 @@ func rawURLScheme(req *http.Request) string {
}
uri := req.RequestURI
schemeRegex := `^(https?):\/\/(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
re, _ := regexp.Compile(schemeRegex)
if re.Match([]byte(req.RequestURI)) {
match := re.FindStringSubmatch(req.RequestURI)
if match := uriRegexp.FindStringSubmatch(req.RequestURI); len(match) > 0 {
scheme = match[1]
if len(match[2]) > 0 {